From: Wenzhuo Lu Date: Fri, 24 Mar 2017 02:51:03 +0000 (+0800) Subject: net/ixgbe: fix TC bandwidth setting X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=1c4da4ef963a971701cd319ab78a431ca53bcb93;p=dpdk.git net/ixgbe: fix TC bandwidth setting 4 and 8 TCs are supported on ixgbe. By default there're 8 TCs. So when initializing the device, the bandwidth for 8 TCs is set. When changing the TC number, it's only considered setting the bandwidth for 4 TCs. If the user change the number from 4 to 8, the TCs' bandwidth is not right. Fixes: 0807f80d35d0 ("ixgbe: DCB / flow control") Cc: stable@dpdk.org Signed-off-by: Wenzhuo Lu --- diff --git a/drivers/net/ixgbe/ixgbe_rxtx.c b/drivers/net/ixgbe/ixgbe_rxtx.c index e5b7cabf3d..c9993abc6d 100644 --- a/drivers/net/ixgbe/ixgbe_rxtx.c +++ b/drivers/net/ixgbe/ixgbe_rxtx.c @@ -3814,6 +3814,15 @@ ixgbe_dcb_hw_configure(struct rte_eth_dev *dev, tc->path[IXGBE_DCB_TX_CONFIG].bwg_percent = 0; tc->path[IXGBE_DCB_RX_CONFIG].bwg_percent = 0; } + } else { + /* Re-configure 8 TCs BW */ + for (i = 0; i < nb_tcs; i++) { + tc = &dcb_config->tc_config[i]; + tc->path[IXGBE_DCB_TX_CONFIG].bwg_percent = + (uint8_t)(100 / nb_tcs + (i & 1)); + tc->path[IXGBE_DCB_RX_CONFIG].bwg_percent = + (uint8_t)(100 / nb_tcs + (i & 1)); + } } switch (hw->mac.type) {